Re: [Rd] R (development) changes in arith, logic, relop with (0-extent) arrays

Regarding Martin Maechler's proposal: Arithmetic between length-1 arrays and longer non-arrays had silently dropped the array attributes and recycled. This now gives a warning and will signal an error in the future, as it has always for logic and comparison operations For example,

Re: [Rd] R (development) changes in arith, logic, relop with (0-extent) arrays

Could we take a cue from min() and max()? > x <- 1:10 > min(x[x>7]) [1] 8 > min(x[x>11]) [1] Inf Warning message: In min(x[x > 11]) : no non-missing arguments to min; returning Inf > As ?min says, this is implemented to preserve transitivity, and this makes a lot of sense. I think the issuing of

[Bioc-devel] Merging two CharacterList objects doesn't work in Bioc-devel

Hi, With Bioc-release I can run without problems the following code: library('GenomicRanges') l <- CharacterList(list(NA, NA, '1', '2')) r <- CharacterList(as.list(letters[1:4])) tmp <- merge(l, r, all = TRUE) However, it gives an error with Bioc-devel: Error in V_recycle(value, x, x_what =

Re: [Rd] R (development) changes in arith, logic, relop with (0-extent) arrays

On 09/08/2016 01:22 PM, Gabriel Becker wrote: On Thu, Sep 8, 2016 at 10:05 AM, William Dunlap wrote: Shouldn't binary operators (arithmetic and logical) should throw an error when one operand is NULL (or other type that doesn't make sense)? This is a different case than

Re: [Rd] R (development) changes in arith, logic, relop with (0-extent) arrays

Prior to the mid-1990s, S did "length-0 OP length-n -> rep(NA, n)" and it was changed to "length-0 OP length-n -> length-0" to avoid lots of problems like any(x<0) being NA when length(x)==0. Yes, people could code defensively by putting lots of if(length(x)==0)... in their code, but that is

Re: [Rd] R (development) changes in arith, logic, relop with (0-extent) arrays

On Thu, Sep 8, 2016 at 10:05 AM, William Dunlap wrote: > Shouldn't binary operators (arithmetic and logical) should throw an error > when one operand is NULL (or other type that doesn't make sense)? This is > a different case than a zero-length operand of a legitimate type.

Re: [Rd] R (development) changes in arith, logic, relop with (0-extent) arrays

Shouldn't binary operators (arithmetic and logical) should throw an error when one operand is NULL (or other type that doesn't make sense)? This is a different case than a zero-length operand of a legitimate type. E.g., any(x < 0) should return FALSE if x is number-like and length(x)==0 but

Re: [Rd] mget call can trigger C stack usage error

Alexandre, AFAICS, this code actually causes infinite recursion, and here's why: 1. formals grabs returns the formals of the function identified by sys.function(sys.parent()) this ends up being print.new, whose first argument is x 2. mget looks for the symbol x in envir =

Re: [Rd] R (development) changes in arith, logic, relop with (0-extent) arrays

Martin, Like Robin and Oliver I think this type of edge-case consistency is important and that it's fantastic that R-core - and you personally - are willing to tackle some of these "gotcha" behaviors. "Little" stuff like this really does combine to go a long way to making R better and better. I

Re: [Rd] Fwd: Re: RSiteSearch, sos, rdocumentation.org, ...?

That would work, although it would entail standing up a server to front the elasticsearch module. The strikes me a huge investment of time which would, in addition, recreate the current key man risk. On Thu, Sep 8, 2016 at 7:51 AM, Kevin Coombes wrote: > Would it

Re: [Rd] Fwd: Re: RSiteSearch, sos, rdocumentation.org, ...?

Would it make sense to recreate the "searchable R help pages" by feeding them all into elasticsearch, which will automatically index them and also provides an extensive (HTTP+JSON-based) API to perform complex searches? On 9/8/2016 10:31 AM, Jonathan Baron wrote: On 09/08/16 07:09, John

Re: [Rd] Fwd: Re: RSiteSearch, sos, rdocumentation.org, ...?

Jonathan, FWIW I mentored a Google Summer of Code student (who was more than highly self-sufficient and needed next to no help, apart from some small R packaging tricks) as part of the Xapian project in order to write RXapian: https://github.com/amandaJayanetti/RXapian which is an R

Re: [Rd] Fwd: Re: RSiteSearch, sos, rdocumentation.org, ...?

On 09/08/16 07:09, John Merrill wrote: Given Google's commitment to R, I don't think that they'd be at all averse to supporting a custom search box on the package page. It might well be a good thing for "someone" to examine the API for setting up such a page and to investigate how to mark the

Re: [Rd] Fwd: Re: RSiteSearch, sos, rdocumentation.org, ...?

I looked at rdocumentation.org. At first I thought it was a superior replacement for namazu, but after I tried a few things I decided that it wasn't. I could not find any documentation about how to search, and the various things I tried seemed to yield very strange responses, e.g., a search for

Re: [Rd] Fwd: Re: RSiteSearch, sos, rdocumentation.org, ...?

On 9/8/2016 5:01 AM, Jonathan Baron wrote: OK. It is sort of fixed and sort of works. We'll keep it for now, but this is not going to work forever. When namazu fails completely I will not have the time to install a new search engine. One option is to use google. For a site like this, I

Re: [Rd] Fwd: Re: RSiteSearch, sos, rdocumentation.org, ...?

On 9/8/2016 3:30 AM, Joris Meys wrote: > > Hi Jonathan, > > I have neither the resources nor the skills to take over, but whatever > happens I want to thank you for all the work. Too often people forget > that all these nice tools keep working due to the devotion of people > like you. > > So

Re: [Rd] Fwd: Re: RSiteSearch, sos, rdocumentation.org, ...?

On 8 September 2016 at 06:01, Jonathan Baron wrote: | We have over 10,000 packages now. I wonder if searching all help files | is really helpful anymore. Yes it is. I go to http://rdocumentation.org a lot for quick look-ups. So thanks to Datacamp for running that. Dirk --

Re: [Rd] Fwd: Re: RSiteSearch, sos, rdocumentation.org, ...?

I have mixed feelings about this. I used to find the sos package very useful when I first started using it but as the number of packages has grown I now find it gives me a huge list which takes a lot of time to digest. This may of course reflect my rudimentary search term selection skills.

Re: [Rd] R (development) changes in arith, logic, relop with (0-extent) arrays

> robin hankin > on Thu, 8 Sep 2016 10:05:21 +1200 writes: > Martin I'd like to make a comment; I think that R's > behaviour on 'edge' cases like this is an important thing > and it's great that you are working on it. > I make heavy use of

Re: [Rd] Fwd: Re: RSiteSearch, sos, rdocumentation.org, ...?

OK. It is sort of fixed and sort of works. We'll keep it for now, but this is not going to work forever. When namazu fails completely I will not have the time to install a new search engine. One option is to use google. For a site like this, I think they will want some money, but I'm not sure,

Re: [Rd] Building R under Linux - library dependencies

> You are not enumerating your trade-offs very well. There are natural > conflicts. What is you really want? > > - Being able to pre-build and distribute? We have done that since the last > 5C1990s with .deb packages. > > - Being able to install with minimal size? Have you queried your users?